The SNPs rs10759243 in the KLF4 gene (OR = 1.284, 95% CI, 1.061 – 1.552, p = 0.010) and rs704010 in the ZMIZ1 gene (OR = 1.237, 95% CI, 1.010 – 1.515, p = 0.040) were associated with the risk of clinical stage (UICC) I and II breast cancer compared with normal controls (Supplementary Table S9). Here, KLF4 is linked to breast cancer.